Spleen is a major component of the reticuloendothelial system and functions as a filtering system for the encapsulated bacteria especially in children. Knowing the spectrum of conditions leading to splenectomy in any geographic area is important to decrease the number of unnessesary splenectomies. Here we report the causes of splenectomy in three major general referring hospitals in Shiraz, ...

The stable phosphonate derivatives have easily synthesized by the reactions involving trialkyl(aryl) phosphites and dimethyl acetylenedicarboxylate in the presence of 4-nitrophenol and/or acid chlorides, dialkyl(aryl) phosphites and N-methylimidazole at 70 oC under solventfree conditions.

this paper presents a mathematical model for the vibration analysis of a three-component piezoelectric force sensor. the cubic theory of weakly nonlinear electroelasticity is applied to the model for describing the electromechanical coupling effect in the piezoelectric sensing elements which operate in thickness-shear and thickness-stretch vibration modes. hamilton's principle is used to d...